Sash-lock.



1.10RGENSON.

sAsH LocK.

APPLICATION FILED AUG23, 1915.

Patented Feb. 22, 1916.

2 SHEETS-SHEET I.

1. JORGENSON.

`sAsH LocK. v

APPLICATION FILED AUG.23, I9I5.

Patented Feb. 22,1916.

2 SHEETS--SHEET 2.

Inf/venan', f/ln J'o'g'enson,

Ber Mey,

uqorney THE COLUMBIA PLANOGRAPH co.. WASHINGTON, D. c.

vao

UNITED STATES PATENT OFFICE.

JOHN JORGENSON, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF ONE-HALF' TO THOMAS BARNETT, OF OAKLAND, CALIFORNIA.

SASH-LOCK.

To all whom t may concern:

Be it known that I, JOHN JoRGnNsoN, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented new and useful Improvements in Sash-Locks, 0f which the following is a specification.

The object of the present invention is to provide a cheap, simple and neat locking device by means of which both sashes of a window can be locked at any desired position, whether open or closed, thereby enabling either the top or bottom of the window to be open for ventilationwhile at the same time affording ample security.

In the accompanying drawing, Figure 1, is a broken perspective view of a window equipped with my invention; Fig. 2 is an enlarged horizontal sectional view thereof; Fig. 3 is a front view of locking device; Fig. 4l is a rear view of the same; Fig. 5 is a front view of the same, the front plate being removed; Fig. 6 is a perspective view of the key; Fig. 7 is a broken side view of awindow sash equipped with my invention; Figs. 8, 9 and 10 are views similar to Figs. 3, 4 and 5 of a modified form of my invention; Fig. 11 is a cross sectional view on the line 11-11 of Fig. 8.

Referring to the drawing, l indicates a window casing, 2 the lower sash and 3 the upper sash thereof. Secured to the vertical edge of each sash, on the margin thereof adjacent to the parting bead 4, is ay metallic strip 6 having formed in its edge next the parting bead a series of recesses 7, any one of which, as will hereinafter appear, is adapted to receive a bolt to prevent the window sash being raised or lowered.

Contained in a transverse recess in the window frame, so that its outer surface is flush with the surface of said frame against which the vertical edge of the lower sash slides, is a lock casing comprising a rear or bottom plate 9 and a front or top plate 11. Said lock casing is secured to said frame by a screw 12 passing through a narrow horizontal strip 13 formed integral with, and midway of, said rear plate and a screw 14: passing through registering holes in the front and rear plates, and screwed into said window frame. The parting bead is cut away to permit the lock casing to extend therethrough. The front plate is secured to specification of Letters Patent. Patented Feb 22, 19'16 Application led August 23, 1915.

Serial No. 46,762.

the rear plate by means of said screw 14 and also by means of two screws 16 and 17 passed through holes in the front plate and screwed lnto said narrow strip 13 forming part of the rear plate. A cylindrical guide 18 is secured to said front plate around a hole therein and a hole is formed in the blind stop to receive said guide, an escutcheon 19 being preferably placed on said blind stop around said hole and communicating with said guide. The front `plate lies between upper andlower flanges 20 (Fig. 3) extending forwardly from the rear plate. Said front and rear plates, flanges and strip form horizontal guides for upper and lower bolts 21, 22, said bolts at their outer ends being bent forwardly to enter recesses 7 in the strips 6 on the sashes, the upper bolt being bent, as shown at 23, through an angle of vabout 450 to enter a recess in the strip upon the lower sash, and the lower bolt being bent, as shown at 24, throughan angle of about 135o to enter a recess in the strip of the upper sash. It is understood thateach of the notches and strips is of sufficient width to receive the bent end of the bolt. The up.- per bolt is normally moved inward to engage a notch in the strip of the lower sash by means of a coiled spring 26 contained in registering slots 27, 28 in the upper bolt and rear plate respectively and compressed between the inner end of said slot 27 andk a lug 29 extending from said rear plate into the slot 27 of the bolt at the outer end thereof. In like manner the lower bolt is normally projected outwardly to engage anotch in the strip of the upper sash, by means of a coiled spring 31 contained in registering horizontal slots 32, 33 in the rear plate Vand lower bolt respectively, and compressed between the outer end of the slot 33 in the lower bolt and a lug 34 formed 'integral with the rear plate and extending inwardly therefrom into the slot 33 in the lower bolt.

It will be seen that as the upper bolt is `drawn inwardly by the pressure of said spring the forwardly bent portion thereof not only enters one of the notches in the strip secured to the lower sash, (when said ylower sash is in the proper position) and thus locks the lower sash against upward or downward movement, but'also presses the farther vertical edge thereof against the window frame, thus effectively preventing rattling. The lower bolt also performs the same office upon the upper sash. By means of this arrangement both the upper and lower sashes are maintained locked by means of said springs. To unlock said sashes said bolts are formed with fingers 36, 3T extending vertically each toward the other bolt. Between said fingers is interposed a lever 88 having at one end a pin projecting from its rear surface into a hole 39 formed in the rear plate, the other end being rounded to engage one or the other of said fingers. In opposite sides of said lever near said pin are recesses al, 4t2. A key i3 having a forked end 44 can be passed through the guide 1S and hole in the front plate and the prongs forming the fork members can be snugly received in the recesses 41, 42 in the lever. lVhen in this position, if the key be turned in one direction, the lever will engage the finger extending from the upper bolt, causing said upper bolt to slide in the direction to compress said spring and remove the bent portion of the bolt from the notch in the strip secured to the lower sash, and if the key be turned through approximately a right angle, the lever will engage said finger in such a manner as to hold the bolt in its unlocking position against the pressure of said spring. Said lower sash can then be moved freely up or down. In the same manner if a key be turned in the opposite direction, so as to engage a finger of the lower bolt, said lower bolt will be withdrawn from its locking position and the upper sash can be freely moved up and down.

In the modification shown in Figs. 8, 9, lO and ll there is provided a rear plate 4:6 having upper and lower flanges 4l?, 48, parts of which are bent over, as shown at 49, to form guides for upper and lower' bolts 5l, 52, there being also provided for the purpose of forming said guides a piece 53 of metal eX- tending parallel with said fianges and hav ing terminal feet spacing said piece from said plate and secured to said plate by means of screws 54:. Said feet, in conjunction with the flanges, guide the bolts in their longitudinal movement. Said bolt has fingers 56, 57 each extending toward the opposite bolt and between said fingers is a compressed coiled spring. Secured to said rear plate is a cylindrical casing 58 in which can fit snugly a circular key 59 held in position by means of a screw 60 passed through a hole 6l in the rear plate and screwed centrally into said key. Said key 59 has on its outer side a diametrical bar 62 by which it can be conveniently turned by hand. On its inner side are secured two diametrically opposite lugs G3. One of these lugs can engage the end of one of the bolts, while the other can engage the wall 64 of a recess cut in the other bolt. Vith this arrangement, if the bar be turned through a right angle from its normal position, the two lugs on the key respectively engage said wall on one bolt and the end of the other bolt to withdraw both from their locking positions against theaetion of the spring.

To assist the carpenter in properly securw ing the device to a window frame, the rear outer edge of the rear plate is bent rearwardly, as shown at 6G, to engage the edge of the recess from which a portion of the parting bead has been removed.

It will be observed that with a sash lock of the above construction, in which the bolts automatically lock the sashes when the hand is withdrawn, the sashes or either of them can be made to open automatically when the bolt or bolts is or are withdrawn to release the sash or sashes, provided that the sash weight is made heavier than the sash. This very advantageous result is due to the construction of the sash lock.

I claim zl. In combination with window sashes and a window frame having a transverse recess therein, looking strips attached to the window sashes, a lock casing in said recess having its outer surface flush with the outer surface of the window frame, bolts guided transversely in said lock casing and having terminal portions adapted respectively to enter notches in the upper and lower sashes, springs for pressing said bolts into said notches, and means extending through the window frame for moving said bolts against the action of said springs to withdraw the same from the notches.

2. In combination with window sashes and a window frame having a transverse recess therein, locking strips attached tothe window sashes, a lock casing in said recess having its outer surface flush with the outer surface of the window frame, bolts guided transversely in said lock casing and having terminal portions formed obliquely therefrom and adapted respectively to enter notches in the upper and lower sashes, springs for pressing said bolts into said notches and means extending through the window frame for moving said bolts against the action of said springs to withdraw the same from the notches.

3. In combination with window sashes and a window frame having a transverse recess therein, locking strips attached to the window sashes, a lock casing in said recess having its outer surface flush with the outer surface of the window frame, bolts guided transversely in said lock casing and having terminal portions formed obliquely in opposite directions therefrom and adapted respectively to enter notches in the upper and lower sashes, springs for pressing said bolts into said notches, and means extending through the window frame for moving said bolts against the action of said springs toy Withdraw the saine from the notches.

4. In combination With Window sashes and a Window frame having a transverse recess therein, locking strips attached to the Window sashes, a locK casing in said recess having its outer surface flush with the outer surface of the Window frame, bolts guided transversely in said lock casing and having terminal portions adapted respectively to enter notches in the upper and lower sashes, a tinger extending integrally from each bolt toward the other, and means extending through the Window frame adapted to engage either finger for controlling said bolts.

5. 1n combination with Window sashes and a Window frame having a transverse recess therein, locking strips attached to the Window sashes, a lock casing in said recess having its outer surface ush with the outer surface of the Window frame, bolts guided transversely in said lock casing and having terminal portions adapted respectively to enter notches in the upper and lower sashes, springs for pressing said bolts into said notches, a linger extending integrally from each bolt toward the other, and means extending through the Window frame adapted to engage either finger for moving said bolts against the action of said springs to Withdraw the same from the notches.

In testimony whereof I have hereunto set my hand in the presence of tWo subscribing Witnesses.

JOHN J ORGEN SON. Witnesses:

F. M. WRIGHT,

D. B. RICHARDS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

